7980452780

素因数分解:

$2^2\times 5^1\times {\mathrm{2221}}^1\times {\mathrm{179659}}^1$

素因数の和:181889

約数の個数: 24

約数和(自身を含む): 16766589840

約数和(自身を除く): 8786137060

約数列:

[1, 2, 4, 5, 10, 20, 2221, 4442, 8884, 11105, 22210, 44420, 179659, 359318, 718636, 898295, 1796590, 3593180, 399022639, 798045278, 1596090556, 1995113195, 3990226390, 7980452780]

約数ペア:

[(1, 7980452780), (2, 3990226390), (4, 1995113195), (5, 1596090556), (10, 798045278), (20, 399022639), (2221, 3593180), (4442, 1796590), (8884, 898295), (11105, 718636), (22210, 359318), (44420, 179659)]